Which 1950 C.S. Lewis novel introduces the Pevensie children to Narnia?

The Lion, the Witch and the Wardrobe introduces the Pevensie children to Narnia. C.S. Lewis published the novel in 1950, and it was the first of his Narnia books to appear in print.

The four Pevensie siblings—Peter, Susan, Edmund, and Lucy—discover the magical land through a wardrobe while staying in the countryside during wartime. Narnia is trapped in an endless winter by the White Witch, and the children become involved in the struggle to restore the rightful order.

The novel features Aslan, a talking lion and central figure in the Narnia stories. Readers often confuse the book’s publication position with its internal chronology because The Magician’s Nephew, published later, tells the story of Narnia’s creation. The 1950 novel nevertheless remains the series’ original entry point and introduced generations of readers to Lewis’s fantasy world.